Move Controlfile from Filesystem to Diskgroup

We
SQL> select name from v$controfile;

NAME
--------------------------------------------------------------------------------
/home/pwprd/ctl.ctl'

2. Shutdown the database and start the instance:
SQL> shutdown normal
SQL> startup nomount

3. Use RMAN to move the controlfile to ASM :
$ rman nocatalog
RMAN>connect target
RMAN>restore controlfile to '+DG NAME ' from 'FILE PATH';

e.g.

RMAN> restore controlfile to '+PWPRD_DATA' from '/home/pwprd/ctl.ct';